On May 24th 2016, the CryptXXX situation took a turn for the worse. Lawrence Abrams reported for Bleeping Computer that CryptXXX version 3.0 not only prevented Kaspersky’s RannohDecryptor from enabling victims to decrypt their files for free, but also had the (presumably unintended) effect of breaking the criminals’ own decryption key. In other words, even paying the ransom doesn’t, at the time of writing, guarantee that you’ll get a working decryptor. When a ransomware gang screws up, it doesn’t always work to the benefit of the victim.
Bleeping Computer has some resources specific to CryptXXX: CryptXXX Support & Help Topic; the CryptXXX Ransomware Help, Information Guide, and FAQ.